Khi hoá hợp 2,1 gam sắt với lưu huỳnh, ngoài tạo ra FeS còn toả ra 1 lượng nhiệt bằng 3,77 kJ. Hiệu suất phản ứng là 100%. Tính nhiệt tạo thành của FeS

Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen. in an experiment, the molar mass of the compound was determined to be 118.084 g/mol. what is the molecular formula of the compound? for both questions, show your work or explain how you determined the formulas by giving specific values used in calculations.

Is laundry detergent an acid or a base?

A50.0 ml sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. what is the new volume? 0.0100 ml 0.325 ml 25.0 ml 100. ml